Kendall & Kylie Jenner Celebrate Sister Khloe Kardashian's 30th Birthday!

Kendall Jenner is super chic in denim while checking out apartments on Friday (June 27) in New York City.

Later in the night, the 18-year-old supermodel and reality star bared her midriff while stepping out with sister Kylie for their sister Khloe Kardashian‘s 30th birthday.

PHOTOS: Check out the latest pics of Kendall Jenner

On the same day, Kylie was seen grabbing some grub with sister Kourtney at Serafina in the Big Apple.

The night before, Kendall and Kylie showed off their legs in blue dresses while heading to dinner.

FYI: Kim is wearing an Ulyana Sergeenko gown. Kourtney is wearing a tbagslosangeles jumpsuit.

20+ pictures inside of Kendall and Kylie Jenner attending Khloe Kardashian‘s 30th birthday dinner…